Door check and closer



'Y Oct. 23, 1923. l

' C. E. LUCKE DooR CHECK AND cLosER Filed May 6, 1922 2 Sheets-Sheet 1 M@ Q m; mf,

Mn. Mw

oct. 23, 1923. 1,411,744

` C. E. LUCKE.

DOOR CHECK AND CLOSER Filed May 6 1922 2 Sheets-Sheet 2 WMV/4" HIM n a 11 S Patented Get. 23, 1923.

f CHARLES E. LUCKE, 0F YORK, N. Y.,

Doon CHECK Application filed May e,

To all whom it mag/'concern' A Be it known that' I, CHARLES E. LUCKn, a citizen vor vthe United States, and a resident of New Yorlnin the county of New York and State ofNew York, haveinvented certainnewandyuseiul Improvements in Door Checks and Close'rs; and I douherjeby declare the following to bea full, clear, and exact description of the invention, such as, will enable others skilled in the art to rwhich it appertains to'make and use the same.

This invention relates to improvements in door checks and closers, and vmore particularly to such-as employ checkingmeans including a piston loperable in a cylinder and connected through the medium of suitable instrumentalities with the door.

In the operation of devices of this type, during the closing of the` door, the resistance of vthe checking medium-fluid for eX- ample,-against the piston causes side thrust of the spindleagainst its bearingand this results in an'undue amount of 'friction vunless thoroughly lubricated, and it is desirable also that the pitmanconnectionv Y with the crank ofthe spindle. shall also be` thoroughly lubricated; y

'One object of my present invention is to provide simple and eiiicient means whereby ample and thoroughlubrication shall be insured atv the spindle bearing, and also Vat ythe bearing of the pitman in its connection with the crank of the' spindle.k

With this and other objects in View, they invention lconsistsin certain novel features of construction andcombinations of parts as hereinafter set forth` and pointed out in the claims. o j o In the vaccompanying drawings ;i Figure 1 is a view partly in section sho-wing the application ofmy improvementstova door check and closer; Figure 2 is'a'partial end View of the same. and Figures 3, 4f, 5 and 6 are views showing modifications.

The checking cylinder of the device` is indicated at 1, said cylinder being closed at its respective ends bymeans of heads 2 and 3 and' intended to containsuitablechecking uid. Thefchecking cylinderl is provided Y spindle 5 is provided with acrank 6 (located within thecylnder l) and said crank hase o 'erly be retained in place AND CLOSER.

1922. semaine. 559,012,

l o portionfor" the cylinder; HA checking piston on 'ro THE Yan-afan rowNE Manuf, raCTUaING COMPANY, or srAMroRn, CONNECTICUT. f 'f ournal mounted in alsocket 8in the lowerV i i 9 is located within the cylindenl atfone* side of the center of the'latter and is conp nected. through the medium of with the crankl. i

rIlhe .packing nutv or bearing member 'may be providedwith an upward tubular exten-y sion 11 to contain packing means 12'or the i spindle and this packin means may propby'a nut 13'threaded into saidrtubular extension., The bearing member f1 is also made with an'annular depending extension 14 in which the lower end portion of the spindle 5 has its bearing. In `the lower portionof the `bearing member 4, an k annular groove 15 is formedto surround the lower portion lofthe spindle'for the purpose of receiving lubricant (asfherea pitman 10 'inafter described) for the i purpose of thoroughly lubricating they spindle bearing at this point to Vreduce toa minimum the i friction which would otherwise occurv by reason of the side thrust against the spindle during the operation ofthechecking means when the door isclosing. f

Thebearing member l may bev providedVK therein with. an annular lubricant collecting chamberl (l'bOve the lubricantgroove 15) to receive lubricant which might Work up- Wardlyffromfthe lower spindle'bearing, and the lubricant thus collected' may Vfind its way into the cylinder Vatthe non-compres# sion side ofthe piston, through a-passagel such as indicated at 17 l' The cylinderd is'providedv on itsKV head ke5 'A largements being, in 4effect,` acontinuation of the other. Communicating ducts 20,21u

are formedy (preferably by drilling)"Pin'fthfeA cylinder enlargements 1 8, o 19 `and the-'duet 20-is connected with the compression'cham-l berof the cylinder 1 by ashort duct 22iil` the cylinder l`1efad'2. The duct 21 ejitendsto the'ipacking .nutor bearing member-Alatri communicates withaperipheral groove V23 in said nut or'member.:` ""Oneor more ducts 24 inthepacking nut or Vbearing member connect the peripheral groove 28 lwith the innerannularfgroove 15.,` f` LThe by-pass formed ly the ducts 20, 21,V 22 and 24 tand the groove 23,` affordsfa passage torchecling iuid fromr'the compres-f'l sion chamber "ot the cylinderk t0 the lllbrlcant groove in the nut or bearing member 4, and this fluid, serving as a lubricant, Will be caused .to passy to .the lubricant groove 15 under pressure When the piston 9 approaches'the head2'of the cylinder in the 'operation of the device -diiringthe closing of the door and the lower bearingiof the v spindle Will'be keptthoroughlyV lubricated.

A duct`25 in the cranked. lower portion of the spindle communicates at one vend 'With the annularlubricant groove 15 and at itsl other -end vvitlra duct 26 in thecrank 6,'.-

said duct`26i-extending to the central portion of said crank with which the pitman I Ois connected, and is provided. with lateral branch ducts'27 which communicate with anannular groove ,'28 around the bearing for the pitman 10 in the connection'of the lattervvith the crank 6. n

,It is apparent that When lubricant is forced to theannular groove^15for lubri-` eating theispindlebearing as previously described, lubricant Will be causedy to ,pass

from said groove, through the ducts r25, 26v and 27 and' annularI groove* 28 and .afford thorough lubrication for the connection between the Apitmanl() and the crank 6.

Instead of `forming. lubricanty by-pass ducts 20, 21, 22, 23 and 24 in the manner abovel described, I may employ aV tube 29y bricant groove 15 and the bearingfor thek pitmanconnection with the crankf, are the same as shown-'in Figure 1, but instead of conductingilubricating fluid from the yend of theY cylinder, .through passages in parts of the cylinder Walls and bearing memberA 4as shown in Figure; 1, provision is made for causing lubricant to. pass through the piston and pitman to the bearingfor the pitman Yin its connection vWith the crank 6, and thence to the lubricant groove.15,-the travel of the lubricant in the arrangement showniin Figure 5 being reverse to. the di-k rection. of flow Aof lubricant in the arrangement shown in yFigure 1.. In the construeer tion shown in Figure 5, they piston 9 is provided with a duct or passage 30 extending` through it and communicating at one end vvithY the compression chamber in the cylinder-1.. The other .end of this duct or passage communicates With an annular groove 31 in the Wristipin 32 which connects theV pitman With the piston, and the groove 31A is Vconnected by passages, indicated at 33, with an annulargr'ooveA 34 at the centerk of.

the Wrist pin. The central Yannular, groove 34 in' thevvristpin communicates,l througha duct or passage 35 extending longitudinally through the pitman with the annular 111-.

bricant groove 28 in Vthe pitman-bearing portion of the crank 6.

1 In the construction shown in Figure` 6,

thek pitman is ysufficiently extended (as at 3G) to meet the inner face of the piston, and f a duct or' passage 37 extends directly through the piston, Wrist pin and pitman, the crank pin being provided with a central annular groove 38 to afford proper connec-` tion ofthe portionof the duct or passage 37 in thecrank pin With those portions which extend through the pistonand pitman.

Various slight changes might vbe made in, the details of construction of my invention.

Without departing from the spirit thereof or limiting its scope and hence Ido notfWishr crank, a spindle bearing, a cylinder, a pisf ton therein, and aV pitinan connectingsaid piston Withthe spindle crank, of a passage- Way leading from the cylinder in front of the piston to the spindle bearingin proximity to the spindle crank, whereby, upon the compression stroke of the piston, lubricant will be forced from the cylinder, through said passage-Way to said spindlebearing.

k2. The combination with` the spindle of a` door closer, said spindle having a crank, a

spindle bearing, a cylinder, a piston therein,

anda pitman connected with said piston and having connection with the crank of the spindle, said crank havingV lubricant receive ing means, ;Wherebyk the connection of the piitman With the crank may be lubricated', of a passage-Way communicating vwith the spindle bearing nearthe spindle crank, also with the lubricant receiving means of the crank and also4 with the cylindery in front ofthe piston, whereby, upon j the compression stroke of the piston, lubricant Will be forced from thecylinder through said passage-Way tothe spindle bearing and also to the lubricant receiving means of the crank. l

3. The combination with the spindle of a door closer, said spindle'having a crank, a

cylinder, a piston in the cylinder, a pitman connected with the piston, a bearing for said pitman in its connectionvvvith the crank ofthe spindle and a bearing for the spindle, of. passages leading from the compression endk of the cylindergto one vof said bearings, andpassages leading from said last men-v tioned bearing to the other bearing, Where,-

by Alubricant Will be forced to said bearings,

durinQcOmpression stroke of the piston.

. 4.` yThe combination with the cylinder,pisY

ton, cranked Spindler, and uitleen of; e @190e check and closer, of a bearing for the spindle, a bearing in the connection of the pit-V last-mentioned annular groove 'to .the annular. groove inthebearing for the pitman on the .crank of the spindle.

5. The combination with thefchecking cylinder of a door check and closer, andra bearing member for the spindleof the closer, said bearing member having a lubricant groove of a passage-way communicating withl the compression portion ofthe cylinder and with said lubricant groove for conveying checking fluid under pressure from said checking cylinder to said lubricant groove. i

6. The combination with the cylinder, piston and spindle of Va door check and closer, of a bearing member for said spindle having lubricant receiving means,V andi a passageway for conveying checking iiuid under pressure from the compression chamber `of the cylinder to said lubricant receiving means in the spindle bearing member.

7. In a door check and closer, the combinationof a cylinder, a piston therein, a spindle, operating connections between said piston and spindle, a bearing member for the spindle, said bearing member khaving ar 1ubricantA groove therein near its lower portion and also having a` peripheral groove and a duct connecting said grooves,`and said cylinder provided with ducts connecting the compression chamber formedr therein with said peripheral groove in ,the bearing meniber, whereby approach of the pistontoward the outer end of the compression chamber`- formed by the cylinder will cause checking Huid to be forced to said lubricant groove to lubricate the spindle bearing. v 8. In a door check and closer, the'combination with a cylinder, a piston therein, a spindle, land operating connections between the spindle and piston, of a bearing member for the spindle-having an annular lubricant groove, means for conveying checking Huid underkpressure from the cylinder to said lubricant groove, said` bearing member having a lubricant collecting chamber above said annular lubricant groove and having a passage connecting said chamber with the cylinder.

I In testimony whereof, I have `signed this lspecification in the presence of two subscrib ing witnesses.

i CHARLES E. LUCKE. Witnesses: Y

' E.v G. PHAIR,

WILLIS F. I-InnsoN.` 

